Valve stem



' Sept. 1, 1825.

G. HOLTER VALVE STEM flied Feb.

MVIIIIIIIZVIAZ INVENTOR Gustave l/o/ter BY Wm ATTORNEY Patented Sept. 1,1925.

UNITED STATES GUSTAVE HOLTER, or SEATTLE, WASHINGTON.

VALVE STEM.

Application filed February 18, 1925. Serial No. 9,972.

To all whom it may concern: r

Be it known that I, GUs'rAvE HoL'rER, a citizen of the United States,residing at Seattle, in the county of King and State of WVashington,have invented a jcertain new and useful Improvement in Valve Stems, ofwhich the following is a specification.

My invention relates to new and useful improvements in adjustable valvestems that are particularly adapted for faucets and the objects of myinvention are to provide a valve stem that may be readily adjusted fordifferent throws of valves and which is entirely independent of anyspring gaskets, or packing in its operation.

Further objects are to provide a stem that is simple and durable inconstruction, efficient and reliable in operation and which may bemanufactured at comparatively small cost.

With the above and other objects in view which will appear as thedescription p-roceeds, the invention consists of the novel construction,adaptation, combination and arrangement of parts hereinafter describedand claimed. 7

These objects are accomplished by devices illustrated in theaccompanying drawings, wherein- Figure 1 is a view in central verticalsection of a faucet wherein the valve stem is shown at the limit of itsdownward stroke.

Fig. 2 is a view partly in elevation and partly .in vertical sectionshowing the valve stem at the limit of its upward stroke;

Fig. 3 is a view in longitudinal section taken on a broken line 3, 3 ofFig. 1; and

Fig. 4 is a view in elevation of the stem with the adjustable nipple andhalf rings attached thereto.

Referring to the drawings throughout which like reference numeralsdesignate like parts, the numeral 5 indicates the base portion of afaucet that is provided with a depending reduced threaded portion 6adapted to be secured to a conduit or sup-ply pipe.

An inner pipe 7 is internally threaded within said reduced portion andprojects upwardly into a pressure chamber 8 provided within the saidbase portion.

The base portion 5 is threadedly secured at its upper end to a valvecasing 9 that is provided with a discharge nozzle 10 communicating withthe interior chamber 11 of said valve casing. Said interior chamber 11is provided with a'lining l2 fixedly secured.

therein and reduced at its upper end to form an annular shoulder 13, andits lower open end is beveled to form a valve seat 14; for reasonspresently set forth. 7

A valve 15 is slidably mounted within the chamber 11. The upper portionof said valve comprises'a plurality of vertical ribs 16 in spacedrelation and, acentral spline 17 so that liquid may pass freelytherethrough. The lower portion of the valve is made in th form of aninverted cup 18 adapted to fit over the upper end of the pipe 7 withsufiicient space between for the free passage of liquid as clearly shownin Fig. 1, of the drawings.

The conical surface 19 joining the upper and lower portions of saidvalve is arranged to contact with the seat 14 as will be readilyunderstood. Itis of the type that is adapted to be normally held in aclosed position by ineans of hydraulic pressure within cham- Theforegoing description is incidental to the subject matter of the presentinvention which is primarily concerned with the means for operating thevalve and regulating its movement as disclosed in the followingdescription.

Said means comprises a valve stem 20 provided at its upper end with ahandle 21 and at its lower end with a worm 22 and adapted to contactwith the top of the valve 15.

The upper end of the casing 9 is reduced and threaded to receive a cap23. A recess 24 is provided in said upper end and is internally threadedto receive a nipple 25 that fits snugly around the stem 20, said nippleis provlded with diametrically disposed slots 26 adapted to receive akey or other instrument for the purpose of turning the nipple and thusregulating movement of said valve stem.

The stem 20 is provided with a reduced portion 27 and two half rings 28are adapted to fit therein and to ride up and down with said stem. Atthe limit of their downward movement they will contact with the floor ofthe recess 24 and their upward movement will be restricted byengagementwith the bottom of the nipple 25.

It will be seen that any wearing away of the valve seat 14 or conebearing 19 may be readily compensated by slightly turning the nipple 25and thus adjusting the movement of the stem and valve in accordancethereith, said nipp e also serves to retain the stem in placeandtogether with the Worm 22, cap 23 and half rings 28 prevents any1eakage around the stem.

While I e ribedmyzinven ienwith some particularity, it Will beunderstood that I intend no limitations, except in so fares imposed bythe appended claims and such changes may be resorted to as are Withinthe scope and spirit of following claims.

What I clajmis: i

1. An adjustable valve stem comprising a stem member, a handle, a Wormon said stem, a casing having a recess therein, a threaded nipple Withinsaid recess,means for axial adjustment ofs-aid nipple, and a collar onsaid stem Wl'lOSG, movement is definedeby said nipple andthev bottom ofsaid recess 2. An adjustable valve stem comprising a stem member, ahandle, a Worm on the lower end of said stem, a casing adapted torece1-ve,sa1;d \.v0rm-,,a cap for the casing, said casing having arecess therein, a nipple threadedly mounted Within said recess havingslots therein, a reduced portion at the upperterminal ofsaidvvorm, and aring mounted Within said reduced portion adapted to engage the bottom ofsaid nipple upon-the upward movementof said stem and the bottom of saidrecess upon its downward movement.

In Witness whereof, I hereunto subscribe my name this 11th day ofFebruary A. D.

GUSTAVE HOLTER.

